Hack saw



Oct. -2l, Y1.930. y l A ln. L.. RIDGERs l 1,778,915

' HACK sAw Filed April `24, 1929 'Patented Oct. 21., 1930 HACK SAW y i Application led Api-i1 24, 1929, SerallNo. 357,818, and in Canada April 19, 1929.` i

- The invention relates to improvementsl in hack saws and an obj ectv of the invention isto provide a hack sawvwith a handle which can Y be swung to either side when desired,this permittingone to manipulate the saw in locations where the customary straight handle could not be used without the fingers gripping thehandle rubbingfthe vwork or other obstruction. Y j 0 A further Objectis to construct an adjustable handle which can be locked in the adjustedA positions and which is eectively.

braced when inthe normal position.

A further object is to provide a saw with a handle having the above vfeatures and which in no way interferes with the customary ad` justiiient provided to accommodate blades of varying length. s

A further object is to provide the adjustv ableA handle feature ina simple, durable andv inexpensive manner and so that'th'e adjust-k ment can be easily and quicklymade. j

With the above more important objects in view, theinvention consists essentially in the arrangement and construction of parts hereinafter more particularlydescribed, referencebeing'had to the accompanying draw-'L Fig. 2 is a plan view of the'handle in the normal or straight position.

Fig. 3 is a plan view of the handle turnedy ried by the handle.

Fig. 6 is a perspective view of thev pivot" arm having the Tv-shaped slot therein.

Fig. 7 is a: vertical sectional view at 7-"7",

Figure 1.l

Y In the drawing like characters of reference indicate corresponding parts in thesevt5 eral figures.

the under side as indicated at 3, the notches being adapted-to receive the pin 4 carried by" the channel shaped back.V Theforward end of the rarm2 is downturned and is supplied with a sleeve 5v receiving slidably ya bolt 6 which has the front end,thereofscrewthreaded to receive the wing nut 7 and the rear end and finally swinging the arm down to 'its original position, the adjustment 'accommodating the length of theblade'whichfit is desired'to use. f'lhe bladev is also'tightened upf in the usual manner by ymanipulating the Y thumbnut 7.

p erinane'ntly as by riveting as indicateda-ty v10 a downwardly extending' standard 11y which 'has the lower 'end thereof'provided witha square sleeve 12slidably receiving a square bar 13 which is provided forwardly with a pin 14 adapted to enterftherear hole of the blade and has the rear'end thereof'fitted v'llo` the rear end ofthe'saw back,I secure with stop means 15 preventing the bar with-y y drawing forwardly out of the'sleeve.' Itwill. be observedtliatnthe back of the handle extendsv rearwardlyY beyond they upper end of the standard and kforms a'socket 161to receive the sides thereofprovidedfwith horizontal pivotally a leverjarmlS' which-hasthe rear partslaterdisclosed, th'e'said socket having end thereof offset to' clear `the back and-fpro-K.- vided with, a substantially 4T-shape'd slotli rlhis slot receives slidably afpivot' jjl'ljlgg-cfjij fied by-al 211111.21 which extendsy forwardly' fromV a bar 22 permanently carredfby- 13119951., upper end O-"Glle vhandle 23.- The. forward end of the bar 22 is fitted with a forwardly; t l y projecting contracted extension 24 adapted to slidably enter the socket 16 formed at the rear' end of the `saw vback Vand th e` extensionice is provided at the sides with guides adapted to slidably enter the slots 17, the arrange ment being such that when the extension is in the socket, the'handlefis in its normal position directly behind the saw. The slot 19V is designed to permit th-e extension to be entered into and withdrawn from the sleeve.Y

It will be'observed that the pin 2O is some--V what back from the forward end of the arm 21 and that the forward end of the latter arm carries an upstandingf stationary screw 26 which Vpasses slidably through an elongated slot 27 vformed inthe rear end of a swinging` lever 28, the forward end of .which is piv-` otally fastened att-'29 to -tlievfcr'ward end Vof the saw back. The screw is supplied witlra jam nut 30 located above the rear end of the lever 28 `and the Varrangement Yis such that when the nut is tightened up, therear end .of the lever 28 is releasably fastened to the underlying end of the arm 21.

To the sleeve 12 I ermanentl secure a short'rearwardly extending arm 31 to which) I pivotally connect at32 a swinging arm 33l which has the'rear end thereof provided withj an elongated slot 34:. Afsta'tionary screw 35 Y the socket, one can shiftthe handle tol either side asr desired in order to givel ample room,

extends'u downwardly Vfrom the under side of ythe handle which it will'be observedv carries also a plate l36 having a roughenedunder face and the screw passesslidably through the slot and has the lower end thereof iitted with a washer 37 and a winged nut 38.

From the -above lit will be obviousV that when the nuts 3()V and 38 Vare loosened, one can,

pull the handle rearwardly'to withdraw the extensionQt from the socket 16, the slotsv 27 and34 accommodating this movement. After the extension has. been withdrawn from for they fingers gripping the handle when one is working in'diificult places where the iingers otherwise might be rubbing the work orv adjoining structure. When the handle is swung to the side, the lower arm 33 swings on the pivot pin 32. andthe upper arm swings freely, the

` slots 19 and 27 and the levers 18A and 28 swinging to accommodate the movement.

When the handle has been placed in the adi' i .justed position, one tightens up the nuts 30V and 38 which locks the handle in the adjust` ed position. One can then luse the saw in the pins 2O andv'26 sliding in thel per part of the handleand connected to*` the lever arm by ya` pin slidably operating in 1 nected to the lower rear part of the frame and having the. free end thereof adjustably fastened to the lower end of thelhandle, a swinging lever pivotally connected tofthe u f per partof the saw framepand having t e frear end ,thereofv adjustably Vfastened to the forward end of the upper swinging arm, and

Y the slot, a swinging lower arm pivotally conmeans for locking thehandle andffralne .in

adjusted position.V

l 2. In a haclrsaw, in combination, a horizontally disposed :back bar, aV standard extending downwardlyrfrom thesbar, a han-` dle detachably connected to the rear end of the bar byv a sliding. joint dlsengageableYin Y the rearV pulling of the handle, a leverarniV pivotally securedv to Vthe/'rear `end :of the back Vbar. and having the free Vend thereof extend` ing rearwardly'and'providedwith a longitudinally extendngslot, an arm extending forwardly from the upper part of the handle and overlying the rear end of the lever arm and connectedslidably thereto by apin in j the armA operating in the lslot, ra swinging lever having theforward end thereof pivotconnectedto the forward end Vof the bacl:l

4barand'the rear end thereof longitudinallyf slotted and overlying the arm carried bythe handle, a pin carried by the latter arm vand passing through thel latter slot, a jamjnut screw 'threadedon the pin, a lower swinging arm pivotally'attachedto the lower end of the standard having the freeV end thereof longitudinally slotted and underlying the lower end ofthe handle, a screw carried by the vhandle extending through the slot and the jam nut'mounted onthe screw.

Signed thisQlth day of December'` 1928.'V

' nonnen L. ninennsg A usual manner and'without rubbing the ngers onthework or other structure. VV hen kthe handle 1s returned to its normal position,

' it is only necessary to force the extension 24:

' ahead'until it firmly seats in the socket 16 and` then tighten up the nuts'.`

'lhe back l and the standardl-l ofthe saw forma rigid frame which'I term the saw j frame.

Y v What I claim as my invention is 1. In a vhack saw, the combination, with the saw frame, of ahandle detachably coniso 

